bamboo kun
n.— «When the bamboo is pulped and treated, it produces strands that are nearly as strong as steel. A natural agent called “bamboo kun” prevents the growth of bacteria on the fiber, eliminating the need for anti-microbial chemical treatment.» —“Raising Cane” by Jim Ridley Nashville Scene (Tennessee) Sept. 15, 2005. (source: Double-Tongued Dictionary)